The volume can be controlled by a linear potentiometer at the bottom center of the speakers.
The ring LED's flash to the beat of the music. This is done by connecting the positive and negative of the LED's to the left and right channels of the amplifier.
Connect each speaker to each channel of the amplifier. The gain and frequency response are set at half. An RCA cord is plugged into the amp and the other end is an aux cord. For this speaker box, the power supply is plugged into the wall instead of running off of a battery.